Weather in May
May signals the transition towards the wet season in the Guam National Wildlife Refuge with slight increases in rainfall. The peak daytime temperature remains relatively high, but the sea temperature scales up to 84°F (28.9°C). Despite the onset of wetter conditions, there remains ample opportunity for tourists and locals to enjoy outdoor pastimes. The island lushness becomes more pronounced as flora responds vigorously to the increased precipitation. Wildlife activity also takes an uptick during the transition period.
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
On the first day of May, sunrise is at 5:58 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 6:44 pm ChST.
Ocean temperature
In May, the average ocean temperature is 84°F (28.9°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
Daylight
In Guam National Wildlife Refuge, the average length of the day in May is 12h and 46min.On the first day of May, sunrise is at 5:58 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 6:44 pm ChST.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How warm is the water in May?
In May, the average ocean temperature is 84°F (28.9°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
How many hours of daylight does Guam National Wildlife Refuge have in May?
The average day length in May is 12h and 46min.
When is the sunrise / sunset in May?
In May, on the first day of the month, sunrise is at 5:58 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 6:44 pm ChST.
Average sea temperature in May
Guam National Wildlife Refuge, GU
- Average sea temperature in May: 84°F
The best month for swimming (with the highest average sea temperature) is August (85.4°F).
The coldest month (with the lowest average sea temperature) is February (82°F).
Average daylight in May
Guam National Wildlife Refuge, GU
- Average daylight in May: 12h and 5min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
Guam National Wildlife Refuge, Guam, USA
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